Abstract: A spray cooling system for gable roofs having inclined first and second roof sections that intersect at a roof summit. The system comprises a conduit mounted atop the first roof section adjacent to the roof summit adapted to be connected with a supply of liquid coolant. The conduit has a first series of ports through which liquid coolant may be sprayed upon the first roof section and a second series of ports through which liquid coolant may be directed over the roof summit and sprayed upon the second roof section.